2439679 has 8 divisors (see below), whose sum is σ = 2777472. Its totient is φ = 2121240.

The previous prime is 2439677. The next prime is 2439719. The reversal of 2439679 is 9769342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2439679 - 2¹ = 2439677 is a prime.

It is a Duffinian number.

2439679 is a lucky number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2439673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4569 + ... + 5074.

It is an arithmetic number, because the mean of its divisors is an integer number (347184).

2^2439679 is an apocalyptic number.

2439679 is a deficient number, since it is larger than the sum of its proper divisors (337793).

2439679 is a wasteful number, since it uses less digits than its factorization.

2439679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9677.

The product of its digits is 81648, while the sum is 40.

The square root of 2439679 is about 1561.9471822056. The cubic root of 2439679 is about 134.6204059917.

The spelling of 2439679 in words is "two million, four hundred thirty-nine thousand, six hundred seventy-nine".